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Pre- and perinatal risk factors in the etiology of infantile cerebral palsy
Insights
Perinatal asphyxia and prematurity are key factors in cerebral palsy subtypes. However, many congenital hemiplegias stem from prenatal causes, unaffected by perinatal care.
Area of Science:
- Neurology
- Pediatrics
- Obstetrics
Background:
- Congenital cerebral palsy (CP) encompasses various neurological disorders affecting movement and posture.
- Understanding the etiology of different CP forms is crucial for effective prevention and management.
- Pre- and perinatal factors are implicated, but their specific roles require detailed analysis.
Purpose of the Study:
- To investigate the influence of pre- and perinatal factors on the etiology of diverse congenital cerebral palsy forms.
- To differentiate etiological contributions across spastic tetraplegia, spastic diplegia, congenital hemiplegia, and ataxic syndromes.
Main Methods:
- Retrospective analysis of anamnestic data from 178 children diagnosed with congenital cerebral palsy.
- Data collected from children born between 1962 and 1976.
- Categorization of etiological factors including perinatal asphyxia, prematurity, and first-trimester bleeding.
Main Results:
- Perinatal asphyxia (40%) and prematurity (37%) were the most significant adverse factors overall.
- Asphyxia was strongly associated with spastic tetraplegia, while prematurity was linked to spastic diplegia.
- A substantial proportion of congenital hemilegias (44%) and ataxic syndromes (34%) showed no identifiable pregnancy or delivery complications.
Conclusions:
- Prenatal factors are a major cause of congenital hemiplegia, independent of birth-related events.
- Perinatal intensive care may not reduce the incidence of certain CP forms, particularly congenital hemiplegia.
- Early detection programs focusing solely on perinatal risk factors may miss cases of congenital hemiplegia due to prenatal origins.
Abstract:
In order to specify the influence of pre- and perinatal factors in the etiology of the different forms of congenital cerebral palsy the anamnestic data of 178 children born between 1962 and 1976 were analysed. The main adverse factors for the whole group were perinatal asphyxia (40%), prematurity (37%) and bleeding in the first trimenon (11%). As expected asphyxia was of foremost importance in spastic tetraplegia and prematurity in spastic diplegia. No complications of pregnancy and delivery were found in 44% of the congenital hemiplegias and in 34% of the ataxic syndromes. Obviously a major part of the congenital hemiplegias is not caused by birth injury but is the consequence of prenatally acquired brain lesions. This group cannot be diminished by perinatal intensive care and early detection by risk programs is difficult since no risk factors exist.